[PATCH] ASoC: nau8821: Add DMI quirk mechanism for active-high jack-detect

[PATCH] ASoC: nau8821: Add DMI quirk mechanism for active-high jack-detect

[Edson Juliano Drosdeck]

Add a quirk mechanism to allow specifying that active-high jack-detection
should be used on platforms where this info is not available in devicetree.

And add an entry for the Positivo CW14Q01P-V2 to the DMI table, so that
jack-detection will work properly on this laptop.

Signed-off-by: Edson Juliano Drosdeck <edson.drosdeck@gmail.com>
---
 sound/soc/codecs/nau8821.c | 41 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/sound/soc/codecs/nau8821.c b/sound/soc/codecs/nau8821.c
index 96d75882b33a..ca6beb2d2649 100644
--- a/sound/soc/codecs/nau8821.c
+++ b/sound/soc/codecs/nau8821.c
@@ -10,6 +10,7 @@
 #include <linux/acpi.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/dmi.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
@@ -25,6 +26,13 @@
 #include <sound/tlv.h>
 #include "nau8821.h"
 
+#define NAU8821_JD_ACTIVE_HIGH			BIT(0)
+
+static int nau8821_quirk;
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, uint, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
+
 #define NAU_FREF_MAX 13500000
 #define NAU_FVCO_MAX 100000000
 #define NAU_FVCO_MIN 90000000
@@ -1792,6 +1800,33 @@ static int nau8821_setup_irq(struct nau8821 *nau8821)
 	return 0;
 }
 
+/* Please keep this list alphabetically sorted */
+static const struct dmi_system_id nau8821_quirk_table[] = {
+	{
+		/* Positivo CW14Q01P-V2 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Positivo Tecnologia SA"),
+			DMI_MATCH(DMI_BOARD_NAME, "CW14Q01P-V2"),
+		},
+		.driver_data = (void *)(NAU8821_JD_ACTIVE_HIGH),
+	},
+	{}
+};
+
+static void nau8821_check_quirks(void)
+{
+	const struct dmi_system_id *dmi_id;
+
+	if (quirk_override != -1) {
+		nau8821_quirk = quirk_override;
+		return;
+	}
+
+	dmi_id = dmi_first_match(nau8821_quirk_table);
+	if (dmi_id)
+		nau8821_quirk = (unsigned long)dmi_id->driver_data;
+}
+
 static int nau8821_i2c_probe(struct i2c_client *i2c)
 {
 	struct device *dev = &i2c->dev;
@@ -1812,6 +1847,12 @@ static int nau8821_i2c_probe(struct i2c_client *i2c)
 
 	nau8821->dev = dev;
 	nau8821->irq = i2c->irq;
+
+	nau8821_check_quirks();
+
+	if (nau8821_quirk & NAU8821_JD_ACTIVE_HIGH)
+		nau8821->jkdet_polarity = 0;
+
 	nau8821_print_device_properties(nau8821);
 
 	nau8821_reset_chip(nau8821->regmap);
-- 
2.39.2

Re: [PATCH] ASoC: nau8821: Add DMI quirk mechanism for active-high jack-detect

[Mark Brown]

On Wed, 19 Jul 2023 17:02:41 -0300, Edson Juliano Drosdeck wrote:
> Add a quirk mechanism to allow specifying that active-high jack-detection
> should be used on platforms where this info is not available in devicetree.
> 
> And add an entry for the Positivo CW14Q01P-V2 to the DMI table, so that
> jack-detection will work properly on this laptop.
> 
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: nau8821: Add DMI quirk mechanism for active-high jack-detect
      commit: 1bc40efdaf4a0ccfdb10a1c8e4b458f4764e8e5f

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark